JP5862929B2 - Fluid control installation method and installation apparatus - Google Patents

Description

  The present invention relates to a fluid control installation method in which a fluid pipe is cut in an uninterrupted state by a cutter member in a casing attached in a sealed manner to the fluid pipe, and a fluid control that restricts the flow of fluid is installed in the casing. And an installation apparatus.

  In the conventional fluid control installation method and installation device, a fluid control is installed in a space after the fluid pipe in the housing is cut out, and the fluid in the housing is controlled by this fluid control or the flow rate is adjusted. (For example, refer to Patent Document 1).

Japanese Unexamined Patent Publication No. 2004-245397 (page 9, FIG. 8)

  However, in Patent Document 1, there is a possibility that the fluid control installed in the housing cannot withstand the fluid pressure and moves in the housing and cannot control the fluid. In order to counteract the pressure, there is a problem that manufacturing cost and installation work of the fluid control are required to increase the structural strength such as providing a rib on the outer surface of the fluid control.

  The present invention has been made paying attention to such problems, and the fluid control fluid does not move in the housing and can maintain a stable fluid control state, and the structural strength of the fluid control fluid itself is not excessively increased. An object of the present invention is to provide a fluid control installation method and an installation device that are easy to install.

In order to solve the above-described problem, the fluid control installation method of the present invention includes:
Attaching a housing sealingly relative to the fluid tube, the casing smell the fluid tube in mosquito jitter member Te cut with constant flow conditions, the inner periphery of the casing to the peripheral side portion and lower portion of the valve plate A fluid control installation method in which a control fluid having a seal member for sealing and controlling a fluid flow is inserted and installed between cut surfaces of the fluid pipe ,
The fluid pipe is cut into a planar cut surface;
The separation width between the cut surfaces of the fluid pipe is wider than the thickness of the control fluid, and the control fluid inclined by receiving fluid pressure in the housing is supported by the cut surface and sealed by the seal member. is characterized in dimensions der Rukoto to maintain state.
According to this feature, even if the control fluid is subjected to fluid pressure in the housing, it is supported by the cut surface of the fluid pipe close to the fluid control fluid, and is also distributed and supported through the fluid pipe to the housing. , not only can maintain a safe boss was flow restriction condition, easily installed requires no housing to increase excessively the structural strength of the braking fluid itself.

The fluid control installation method of the present invention comprises:
The said fluid control is supported by the lower end side of the said cut surface, It is characterized by the above-mentioned.
According to this feature, since the fluid control is supported at the lower end side of the cut surface of the fluid pipe, a stable flow control state can be maintained .

The fluid control installation method of the present invention comprises:
The system fluid, the seal member from the inside of the valve plate is characterized Rukoto is supported by the cutting surface.
According to this feature, since the valve plate inside the seal member is supported by the cut surface, the fluid control can be reliably supported against the fluid control subjected to the fluid pressure.

The fluid control installation method of the present invention comprises:
The cut surface is formed in a planar shape in a direction perpendicular to the tube axis of the fluid tube .
According to this feature, the cut surface is formed in a planar shape in the direction perpendicular to the tube axis of the fluid tube, and can be easily cut.

The fluid control installation device of the present invention comprises:
A fluid pipe, a casing attached in a sealed manner to the fluid pipe, and a sealing member that seals the inner peripheral portion of the casing at a peripheral side portion and a lower portion of the valve plate; A fluid control device comprising a fluid control device for controlling the flow of
The fluid pipe has a planar end face;
The separation width between the end faces of the fluid pipe in the casing is wider than the thickness of the damping fluid, and the sealing member that supports and tilts the damping fluid that receives fluid pressure in the casing by the end face. is characterized in dimensions der Rukoto maintaining the sealed state by.
According to this feature, even if the control fluid is subjected to fluid pressure in the housing, it is supported on the end surface of the fluid pipe close to the fluid control fluid, and is also distributed and supported through the fluid pipe to the housing. It is possible to provide a fluid-reducing device that is lighter and smaller in size, in which a fluid-reducing device that does not move in the housing and can maintain a stable flow-controlling state does not need to be excessively increased.

It is a partial cross section side view which shows the state by which the housing | casing was attached to the fluid pipe | tube in Example 1. FIG. (A) is a top view of a cutter member, (b) is a front view of a cutter member. It is side surface sectional drawing which shows the state by which the cutter member was arrange | positioned above the fluid pipe | tube. It is front sectional drawing similarly to FIG. It is side surface sectional drawing which shows the state which inserted and arrange | positioned the fluid control in the housing | casing. It is front sectional drawing similarly to FIG. It is side surface sectional drawing which shows the state after completion | finish of installation of a fluid control. It is side surface sectional drawing which shows the state after completion | finish of the installation of the fluid control in Example 2. FIG. It is side surface sectional drawing which shows the state after completion | finish of installation of the fluid control in a modification.

  EMBODIMENT OF THE INVENTION The form for implementing the fluid-control installation method and installation apparatus based on this invention is demonstrated below based on an Example.

  The fluid control installation method and installation apparatus according to the first embodiment will be described with reference to FIGS. As shown in FIG. 1, the fluid pipe 1 of the present embodiment is made of a resin pipe such as high-density polyethylene formed in a substantially cylindrical shape, is extended in a substantially horizontal direction, and contains water as a fluid therein. Is flowing. For example, as shown in FIGS. 5 and 7, the fluid pipe 1 is configured such that a housing 2 for installing a fluid control 11 is attached in a sealed manner at a predetermined location. The fluid pipe 1 is cut in the casing 2 by a cutter member 52 to be described later (see FIGS. 2A, 2B to 4), and the fluid control 11 inserted and disposed in the casing 2 is installed. Thus (see FIGS. 5 to 7), the fluid flow path can be blocked.

  The material of the fluid pipe 1 is not limited to high density polyethylene, but may be other polyolefin resin or the like, or may be made of metal such as cast iron. In the present embodiment, the fluid in the fluid pipe 1 is clean water, but the fluid flowing in the fluid pipe 1 is not necessarily limited to clean water, and may be, for example, industrial water or sewage, or gas. Or a fluid pipe through which a fluid in a gas-liquid mixed state flows may be used.

  As shown in FIG. 1, a housing 2 fixedly attached to the outer peripheral surface 1 a of the fluid pipe 1 is disposed from above with respect to the fluid pipe 1 and covers a first case 3 covering the upper side of the outer circumference of the fluid pipe 1. And a second case 4 that is disposed from below with respect to the fluid pipe 1 and covers the lower side of the outer periphery of the fluid pipe 1. The first case 3 and the second case 4 are made of a metal material such as cast iron.

  In addition, the first case 3 includes a pair of contact portions 3 a that are in contact with the outer circumferential surface 1 a of the fluid pipe 1 along the pipe shaft direction along the pipe shaft direction. On the inner wall of each contact portion 3a that faces the outer peripheral surface 1a of the fluid pipe 1, a water stop member 20a that contacts the outer peripheral surface 1a of the fluid pipe 1 along the substantially entire length in the circumferential direction of the first case 3 is a fluid. A pair is provided along the tube axis direction of the tube 1.

  A branch port 3g is formed in the upper part between the contact portions 3a and 3a of the first case 3 so as to extend upward along the tube axis direction of the fluid pipe 1 so as to be substantially orthogonal to the tube axis of the fluid pipe 1. ing. The branch port 3g is formed to penetrate in the vertical direction, and an upper flange 3i is formed at the upper end of the branch port 3g. Further, flanges 3n formed to project toward the outer diameter direction of the fluid pipe 1 at both ends of the fluid pipe 1 in the first case 3 have a substantially semicircular arc shape when viewed from the front. Thus, it extends over the circumferential direction of the first case 3.

  As shown in FIGS. 1 and 4, the both sides of the fluid pipe 1 in the first case 3 in the direction perpendicular to the pipe axis are inclined downward so that the fluid control 11 can be easily inserted into the housing 2. A flat surface 3j is formed over the lower end of the first case 3. Further, the first case 3 is formed with a pair of flanges 3 c and 3 c that are continuous with the contact portion 3 a and face in the outer diameter direction of the fluid pipe 1 so as to protrude along the pipe axis direction of the fluid pipe 1. Yes.

  The second case 4 is provided with an abutting portion 4 a that has substantially the same width dimension in the tube axis direction of the fluid pipe 1 as the first case 3 and abuts on the outer peripheral surface 1 a at the lower part of the fluid pipe 1. On the inner wall of the contact portion 4a facing the outer peripheral surface 1a of the fluid pipe 1, a water stop member 20c that contacts the outer peripheral surface 1a of the fluid pipe 1 along the substantially entire length in the circumferential direction of the second case 4 is provided. A pair is provided along the direction of one tube axis. Further, flanges 4n formed to project toward the outer diameter direction of the fluid pipe 1 at both ends of the fluid pipe 1 in the second case 4 have a substantially semicircular arc shape when viewed from the front. Thus, it extends over the circumferential direction of the second case 4.

  As shown in FIGS. 1 and 3, the fluid pipe 1 in the second case 4 is inclined downward on both sides of the fluid pipe 1 in the direction perpendicular to the pipe axis so that the fluid control 11 can be easily inserted into the housing 2. Is formed from the upper end portion of the second case 4 to the lower portion. Further, the flat surface 4j extends horizontally on the inner bottom portion of the second case 4. On the flat surface 4j extending at the inner bottom portion of the second case 4, a fluid control 11 is arranged as will be described later.

  As shown in FIGS. 1 and 4, the second case 4 includes a pair of flanges 4 c and 4 c that are continuous with the contact portion 4 a and face in the outer diameter direction of the fluid pipe 1. A protrusion is formed along the tube axis direction.

  As described above, the casing 2 constituted by the first case 3 and the second case 4 is, in the present embodiment, each flange 3n, 4n, which is an end of the casing 2 on the tube axis direction side of the fluid pipe 1. It is fixed to the fluid pipe 1 so as to be immovable by an attachment member 22 as a restricting portion of the present invention, which is made of a resin material attached to the fluid pipe 1. In addition, only the attachment member 22 attached to the flange 3n is demonstrated about the attachment member 22 attached to each flange 3n and 4n about the same structure.

  As shown in FIG. 1, the attachment member 22 is formed in a substantially semicircular arc shape having an inner diameter substantially the same as the outer diameter of the fluid pipe 1. The attachment member 22 has a fusion part 22 a in which a heating wire 22 b that generates heat when current flows therein is disposed over substantially the entire length in the circumferential direction of the attachment member 22. Each end of the heating wire 22b is connected to a connection portion (not shown) provided on the outer surface of the mounting member 22 so as to be electrically connected to an external power source. Further, the fitting member 22 is formed with a fitting space 22e having substantially the same shape as the flange 3n.

  As shown in FIGS. 3 and 4, the cutter member 52 includes a cylindrical body 53 that opens downward at the end on the fluid pipe 1 side. As shown in FIGS. 2 (a) and 2 (b), this cylindrical body 53 has a wide portion 53d extending in a substantially planar shape in the direction perpendicular to the tube axis, which is larger than the outer diameter of the fluid tube 1, and a tube shaft. The narrow portion extending in the direction is formed in a substantially oval shape in plan view that is flattened smaller than the outer diameter of the fluid pipe 1. A blade 53a for cutting the fluid pipe 1 is formed at the end of the cylindrical body 53 on the fluid pipe 1 side. In addition, an infinite number of flow holes 53 b that penetrate the wall surface of the cylindrical body 53 are formed on the wall surface of the cylindrical body 53.

  In addition, an opening 53 c that opens downward is formed inside the cylindrical body 53. A guide plate 54 that can move in the axial direction of the shaft member 51 in the cylindrical body 53 is disposed in the opening 53c. The guide plate 54 is formed in substantially the same shape as the opening 53 c, and the outer peripheral surface facing the side of the cutter member 52 is formed as a vertical surface that is in sliding contact with the inner peripheral surface of the cylindrical body 53. .

  Further, the lower end portion of the guide plate 54 is formed in a horizontal plane that contacts the outer peripheral surface 1 a of the fluid pipe 1, and is disposed so as to slightly protrude toward the fluid pipe 1 from the blade portion 53 a. At the upper end of the guide plate 54, a guide bar 55 is provided so as to pass through the cylindrical body 53 to above the cutter member 52, and the guide plate 54 is connected to the fluid pipe 1 around the guide bar 55. A coil spring 56 that biases toward the surface is disposed.

  Therefore, the guide plate 54 moves in the opening 53 c in the axial direction of the shaft member 51, so that the cutter member 52 guides the guide plate 54 while the inner peripheral surface of the opening 53 c is guided by the vertical surface of the guide plate 54. The shaft member 51 is relatively moved in the axial direction (see FIG. 4).

  In order to cut the fluid pipe 1 using the casing 2 and the cutter member 52 configured as described above, first, as shown in FIG. 1, in the first case 3, the fitting space 22e of the mounting member 22 is flanged. Concave and convex are fitted to 3n. Furthermore, the mounting member 22 and the flange 3n are locked by the locking pin 21, so that the mounting member 22 is mounted so as not to move relative to the flange 3n. Thereafter, the attachment member 22 is similarly attached to the flange 4n of the second case 4.

  Next, as shown in FIG. 1, the first case 3 to which the attachment member 22 is attached is disposed on the upper part of the fluid pipe 1. And the 2nd case 4 is arrange | positioned from the downward direction with respect to the fluid pipe | tube 1 in the state which arranged the water stop member 24 between the flanges 3c and 4c. Furthermore, the flanges 3c and 3c of the first case 3 and the flanges 4c and 4c of the second case 4 are opposed to each other, and the flanges 3c and 4c that are opposed to each other are tightened with bolts and nuts 25, whereby the casing 2 is fixed. Temporarily fixed to the fluid pipe 1.

  At this time, each water-stopping member 20a, 20c is formed in an annular shape when the both ends in the circumferential direction of the water-stopping member 20a are in close contact with both ends in the circumferential direction of the water-stopping member 20c. In addition, the space between the outer peripheral surface 1a of the fluid pipe 1 and the contact portions 3a and 3a is sealed. As shown in FIGS. 4 and 6, the flat surfaces 3j and 4j are configured as a continuous surface having no discontinuous surfaces such as protrusions and steps.

  The fused portion 22 a of the attachment member 22 attached to each of the flanges 3 n and 4 n is in contact with the outer peripheral surface 1 a of the fluid pipe 1 over substantially the entire length in the circumferential direction of the fluid pipe 1. Next, a power cable connected to an external power source (not shown) is connected to the connection portion of each mounting member 22 attached to the flanges 3n, 4n, and power is supplied from the external power source for a predetermined time. When the heated heating wire 22b is heated to a high temperature, the fused portion 22a made of a resin material and the outer peripheral surface 1a of the fluid pipe 1 are heated and gradually melted.

  The melted fused portion 22a and the outer peripheral surface 1a of the fluid pipe 1 are mixed with each other, and the heat generated by the heating wire 22b is stopped and integrated to solidify by lowering to room temperature. And fixed in a state where relative movement is restricted. That is, the attachment member 22 constitutes a restricting portion of the present invention. Thus, the attachment of the housing 2 to the fluid pipe 1 is completed.

  Next, as shown in FIGS. 3 and 4, the upper case 35 in which the working valve 36 and the cutting device 50 are disposed is connected to the upper flange 3 i of the branch port 3 g in a sealing manner. The cutting device 50 includes a shaft member 51 connected to a driving means (not shown) and traveling in the axial direction toward the fluid pipe 1 in the branch port 3g, and the above-described cutter member 52 connected to the lower end portion of the shaft member 51. It is mainly composed. Among these, the upper case 35 is provided with an air valve (not shown) for venting air and a water pouring valve for water pouring.

  The cutting device 50 configured in this manner replaces the air in the housing 2 and the upper case 35 with water by injecting water through the water injection valve, and then the cutter member 52 is connected to the fluid pipe 1 through the shaft member 51. The lower end portion of the guide plate 54 is brought into contact with the outer peripheral surface 1 a at the upper end portion of the fluid pipe 1.

  Then, the cutter member 52 is continuously advanced in the axial direction of the shaft member 51, so that the cutter member 52 is continuously pressed against the outer peripheral surface 1 a of the fluid pipe 1 by the guide plate 54. The cutter member 52 fixes the position for cutting the fluid pipe 1 by the frictional force generated between the lower end of the plate 54 and the outer peripheral surface 1 a of the fluid pipe 1.

  Thereafter, the guide plate 54 and the cutter member 52 are advanced, so that the guide plate 54 stays at the position in contact with the outer peripheral surface 1 a of the fluid pipe 1 while receiving a biasing force from the coil spring 56. In the meantime, the cylindrical body 53 is cut in a continuous flow state with the blade portion 53a sequentially facing downward while the inner peripheral surface thereof is in sliding contact with the vertical surface of the guide plate.

  At this time, the fluid pipe 1 receives a pressing force from the cutter member 52 as the cutter member 52 cuts the fluid pipe 1 from above to below, but the cylindrical body 53 of the cutter member 52 has been described above. Since the narrow portion is flattened to be smaller than the outer diameter of the fluid pipe 1 and the cutting region in the pipe axis direction of the fluid pipe 1 is small, it is temporarily within a range that can be elastically restored by the pressing force from the cutter member 52. However, permanent deformation is prevented.

  Further, as the cutting of the fluid pipe 1 proceeds, the flow holes 53 b are arranged in the fluid pipe 1. For this reason, since the flow path of the fluid is secured by the flow hole 53b in the fluid pipe 1 being cut by the cutter member 52, a part of the fluid flowing in the fluid pipe 1 passes through the flow hole 53b. Thus, the turbulent flow generated by the fluid flowing through the cylindrical body 53 and coming into contact with the cylindrical body 53 and the fluid pressure received by the cylindrical body 53 from the fluid can be kept small.

  And as shown in FIG. 4, the location cut | disconnected by completing the cutting | disconnection of the fluid pipe | tube 1 by the blade part 53a will be cut | disconnected from the fluid pipe | tube 1, and will become the section | slice 1b. The section 1b is in close contact with the inner peripheral surface of the cylindrical body 53 in the opening 53c due to the elastic restoring force of the section 1b itself, and the frictional force generated between the inner peripheral surface of the cylindrical body 53 and the section 1b. Thus, it is accommodated and held in the cylindrical body 53.

  Next, the shaft member 51 is retracted, and the cutter member 52 holding the section 1b is moved from the inside of the housing 2 into the upper case 35.

  After accommodating the section 1b from within the housing 2 by retracting the shaft member 51 toward the upper case 35, the housing 2 is hermetically closed by sliding the work valve 36 and the upper case 35 is closed. The cutter member 52 and the section 1b collected from the housing 2 are removed from the inside, and the cutting of the fluid pipe 1 by the cutting device 50 is completed.

  The cut surface 1c, which is the end surface of the fluid pipe 1 from which the section 1b has been removed from the inside of the housing 2, can support the fluid control 11 that has received fluid pressure in the housing 2, as will be described later. The tube 2 protrudes in the direction of the tube axis from the inner surface of the housing 2 at a location that is close to and away from the outer surface of the housing 2, and is formed in a planar shape in the entire cross section in the direction perpendicular to the tube axis of the fluid tube 1.

  After the cutter member 52 and the slice 1b are removed from the upper case 35, as shown in FIGS. 5 and 6, the fluid control device 60 is attached to the housing 2, and the fluid control 11 is installed in the housing 2. . The fluid control installation device 60 includes a fluid pipe 1, a casing 2 attached to the fluid pipe 1 in a sealed manner, and a shaft member 51 fixed to the tip of the shaft member 51. It is mainly comprised from the fluid control 11 which controls

  Among these, the fluid control 11 includes a valve plate 13, an annular annular seal portion 16 a that can adhere to the upper portion of the valve plate 13 over the entire circumference of the inner peripheral surface of the housing 2, and a lower portion from the annular seal portion 16 a. And a seal portion 16b that can be adhered to the circumferential side portion and the lower portion of the valve plate 13 over the entire length of the flat surfaces 3j and 4j. It functions as a shut-off valve that shuts off the flow path of the fluid pipe 1.

  In order to insert and arrange the control fluid 11 configured in this way into the housing 2, the housing 2 is opened by sliding the work valve 36 as shown in FIGS. The inner and upper cases 35 are filled with fluid. Then, after closing the water injection valve, the shaft member 51 in which the protruding portion 13a at the upper end of the valve plate 13 is fitted to the tip portion 51a and the fluid control 11 is fixed by the bolt 14 is directed toward the inside of the housing 2. Let it go.

  By causing the shaft member 51 to advance toward the inside of the housing 2, the annular seal portion 16 a of the fluid control 11 is brought into close contact with the entire circumference of the inner peripheral surface of the housing 2. At the same time, the flat surfaces 3j and 4j and the seal portion 16b are brought into close contact with each other, and the valve plate 13 and the housing 2 are held in a sealed state, whereby the fluid control 11 is inserted and disposed in the housing 2.

  In addition, since the cut surface 1c of the fluid pipe 1 is formed at a location that is close to and away from the outer surface of the fluid control 11, the fluid control 11 is not interfering with the cut surface 1c of the fluid tube 1 and the housing 2 Installed inside.

  Furthermore, in this embodiment, both the cut surfaces 1c and 1c located on the upstream side and the downstream side of the fluid pipe 1 so as to sandwich the damping fluid 11 are spaced apart from the outer surface of the damping fluid 11. However, for example, only the cutting surface 1c located on the downstream side of the control fluid 11 is formed at a location that is closely spaced from the outer surface of the control fluid 11, and is located on the upstream side of the control fluid 11. The surface 1 c may be formed at a location that is relatively far away from the outer surface of the fluid control 11.

  After the fluid control 11 is inserted and arranged in the casing 2, the upper end of the valve plate 13 is pressed and held downward by screwing a pressing bolt 9 provided on the upper flange 3i of the casing 2 so that the upper case After draining the fluid in 35, the operator inserts a hand through an operation port (not shown) provided in the upper case 35, thereby removing the fluid control 11 from the tip 51 a of the shaft member 51. Finally, after removing the upper case 35 from the housing 2, as shown in FIG. 7, the lid body 17 is arranged on the upper flange 3 i, and the fitting recess 17 a on the lower surface of the lid body 17 is placed on the upper end of the valve plate 13. The lid 17 and the upper flange 3 i are fastened with bolts 18 while being fitted to the protruding portion 13 a.

  By tightening the lid 17 and the upper flange 3i with the bolt 18, the fluid control 11 is pressed downward by the lid 17 and the pressing bolt 9, and the inner peripheral surface of the housing 2 and the annular seal portion 16a, The flat surfaces 3j and 4j and the seal portion 16b are brought into close contact with each other more securely, the damping fluid 11 is fixed in the casing 2, and the arrangement of the damping fluid 11 into the casing 2 is finished.

  As described above, in the installation method of the fluid control 11 in this embodiment, the cut surface 1c of the fluid pipe 1 that is cut by the cutter member 52 in the uninterrupted state is the fluid control 11 that receives the fluid pressure in the housing 2. Is formed at a location close to the control fluid 11 so that even if the control fluid 11 is subjected to fluid pressure in the housing 2, the cut surface 1 c of the fluid pipe 1 close to the control fluid 11 is applied to the cut surface 1 c. Since it is supported and distributed to and supported by the casing 2 via the fluid pipe 1, not only the damping fluid 11 does not move in the casing 2 but can maintain a stable regulation state, and the damping fluid 11 itself It is not necessary to increase the structural strength excessively and it is easy to install in the housing 2.

  In particular, the cut surface 1c of the fluid pipe 1 is a plane cut in the entire cross section in the direction perpendicular to the pipe axis, and the cut surface 1c is close to the outer surface of the fluid control 11 over the entire surface, so that it receives fluid pressure. Even if the damping fluid 11 tries to move locally, for example, at the lower end, it can be reliably supported by the cut surface 1c close to the outer surface of the damping fluid 11 over the entire surface and prevented from moving.

  Further, since both the upstream and downstream cut surfaces 1c, 1c of the fluid pipe 1 are close to the outer surface of the fluid control 11, for example, as shown in FIG. When the valve plate 13 is inclined so that the lower end, which is the tip, is pressed downstream by the fluid pressure and faces the downstream side, the two cut surfaces 1c and 1c of the fluid pipe 1 that are adjacent on the upstream side and the downstream side are used. The valve plate 13 to be inclined by the fluid pressure is sandwiched and supported. More specifically, the cutting surface 1c that is close to the downstream side of the fluid control fluid 13 abuts and supports the lower end of the valve plate 13 that is pressed downstream, and the cutting surface 1c that is close to the upstream side of the fluid control fluid 13 is The upper end side of the valve plate 13 which is going to move upstream is brought into contact with and supported by the inclination of the valve plate 13 described above.

  Further, the casing 2 is attached via an attachment member 22 that is a restricting portion that restricts relative movement with respect to the fluid pipe 1, so that the fluid pipe 1 regulates relative movement with respect to the casing 2 via the attachment member 22. Therefore, the fluid control 11 supported by the fluid pipe 1 can be prevented from moving with respect to the housing 2.

  In the installation device of the fluid control 11 in this embodiment, the cut surface 1c, which is the end surface of the fluid pipe 1 in the housing 2, can support the fluid control 11 that has received fluid pressure in the housing 2. In addition, since it is formed at a location close to the control fluid 11, even if the control fluid 11 receives fluid pressure in the housing 2, it is supported by the cut surface 1 c of the fluid pipe 1 close to the control fluid 11. In addition, since it is also distributed and supported by the casing 2 via the fluid pipe 1, it is not necessary to excessively increase the structural strength of the fluid control 11, and it is possible to maintain a stable flow control state without moving within the casing 2. It is possible to provide a fluid control installation device in which the fluid control 11 is installed in a lighter and smaller size.

  Next, a method and apparatus for installing a fluid control according to the second embodiment will be described with reference to FIG. In addition, the same structure as the said Example and the overlapping structure are abbreviate | omitted.

  As shown in FIG. 8, a support for supporting the fluid control 11 subjected to fluid pressure in the housing 2 on the outer peripheral surfaces 1 a and 1 a in the vicinity of both the upstream and downstream cut surfaces 1 c and 1 c of the fluid pipe 1. The members 30 are provided in an annular shape in the circumferential direction. More specifically, each support member 30 is formed in a ring shape that can be divided into two or more, not shown, and is assembled to the outer peripheral surface of the fluid pipe 1. It is made of a resin material that is electrothermally fused to the outer surface of the tube 1.

  Further, the support member 30 is formed to be substantially flush with the cut surface 1c of the fluid pipe 1 and is in contact with the inner surface of the housing 2 on the side facing the support portion 30a. A contact portion 30b.

  Although not particularly shown, the support member 30 configured in this manner is first assembled at a predetermined location on the outer peripheral surface 1a of the fluid pipe 1, and then the housing as described above with respect to the fluid pipe 1 to which the support member 30 is assembled. The body 2 is provided, then the fluid pipe 1 in the housing 2 is cut and the fluid control 11 is installed.

  Thus, the outer peripheral surface 1a of the fluid pipe 1 is provided on the outer peripheral surface 1a in the vicinity of the cut surface 1c of the fluid pipe 1 by providing the support member 30 capable of supporting the fluid control 11 that receives the fluid pressure in the housing 2. With the support member 30 provided on the surface, the support region for supporting the fluid control 11 can be expanded together with the cut surface 1 c of the fluid pipe 1.

  Further, since the support member 30 has a contact portion 30 b that contacts the inner surface of the housing 2, the support member 30 uses the contact portion 30 b that contacts the inner surface of the housing 2 to control the fluid. By obtaining a reaction force for supporting 11, it can be reliably supported against the fluid control 11 that receives fluid pressure.

  Note that the support member of the present invention is not necessarily limited to being provided in a ring shape over the entire circumference of the fluid pipe 1. For example, a single member or a plurality of support members may be provided only at predetermined locations such as the lower end of the fluid pipe 1. .

  Further, the support member 30 of the present invention has a contact portion 30b that contacts the inner surface of the housing 2, and if the reaction force for supporting the fluid control 11 can be obtained from the corresponding contact portion 30b, the fluid pipe 1 is not necessarily used. For example, it may be loosely fitted to the outer periphery of the fluid pipe 1 without being provided. Alternatively, the support member 30 is fixedly provided to the fluid pipe 1 contrary to the above, and if the reaction force for supporting the fluid control 11 from the fluid pipe 1 can be obtained, the support member 30 is not necessarily applied to the housing 2. The contact part 30b may not be provided and may be separated from the housing 2.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above embodiment, the damping fluid 11 is mainly composed of the valve plate 13 and functions as a shut-off valve that shuts off the flow path by being installed in the housing 2. For example, FIG. As shown in the figure, the valve box 23 installed in a sealed manner in the housing 2 'via the sealing materials 26a and 26b, and the pivot 15 turning in the vertical direction in the valve box 23 is moved up and down. It may be a fluid control 31 composed of a valve body 25 that is pivotally supported. The valve body 25 moves up and down in the valve box 23 to open the flow path of the fluid pipe 1 at an arbitrary opening degree. Alternatively, it may function as a gate valve that shuts off. Alternatively, the fluid control may be configured by a butterfly valve, an emergency shutoff valve, a plug, or the like, or by a switching valve capable of switching a flow path between the fluid pipe and the branch pipe branched from the fluid pipe. It doesn't matter.

  Moreover, in the said Example, although the attachment member 22 was heat-sealed with respect to the fluid pipe | tube 1 as a control part of this invention, the relative movement with respect to the fluid pipe | tube 1 was attached, for example, As the restricting portion of the present invention, a plurality of locking bodies having blade portions facing the inner diameter side of the fluid pipe 1 are arranged in the housing 2 and the blade portions are pressed against the outer peripheral surface 1a of the fluid pipe 1 by pressing the locking bodies. The casing 2 may be attached to the fluid pipe 1 by restricting relative movement thereof.

  Further, in the above-described embodiment, in the casing 2 attached in a sealed manner to the existing fluid pipe 1, the fluid pipe 1 is cut in an uninterrupted state by the cutter member 52, and the fluid control 11 in the casing 2 is obtained. Although the cutting surface 1c which adjoins is formed, for example, a casing is attached to the end of a newly installed fluid pipe, and the end face of the fluid pipe in the casing is arranged so as to be close to the fluid control, the fluid pipe The anti-fluid may be supported by the end face.

1 Fluid pipe 1c Cut surface (end face)
2 Housing 11 Fluid control 22 Mounting member (Regulator)
30 support member 30a support portion 30b contact portion 31 fluid control 50 cutting device 52 cutter member 53 tubular body 60 fluid control installation device

Claims (5)

Attaching a housing sealingly relative to the fluid tube, the casing smell the fluid tube in mosquito jitter member Te cut with constant flow conditions, the inner periphery of the casing to the peripheral side portion and lower portion of the valve plate A fluid control installation method in which a control fluid having a seal member for sealing and controlling a fluid flow is inserted and installed between cut surfaces of the fluid pipe ,
The fluid pipe is cut into a planar cut surface;
The separation width between the cut surfaces of the fluid pipe is wider than the thickness of the control fluid, and the control fluid inclined by receiving fluid pressure in the housing is supported by the cut surface and sealed by the seal member. braking fluid installation wherein the dimensions der Rukoto to maintain state. The said fluid control is supported by the lower end side of the said cut surface, The fluid control installation method of Claim 1 characterized by the above-mentioned. The system fluid, control fluid installation method according to claim 1 or 2, wherein the sealing member from the inside of the valve plate, characterized in Rukoto is supported by the cutting surface. The fluid control installation method according to any one of claims 1 to 3, wherein the cut surface is formed in a planar shape in a direction perpendicular to the tube axis of the fluid tube . A fluid pipe, a casing attached in a sealed manner to the fluid pipe, and a sealing member that seals the inner peripheral portion of the casing at a peripheral side portion and a lower portion of the valve plate; A fluid control device comprising a fluid control device for controlling the flow of
The fluid pipe has a planar end face;
The separation width between the end faces of the fluid pipe in the casing is wider than the thickness of the damping fluid, and the sealing member that supports and tilts the damping fluid that receives fluid pressure in the casing by the end face. braking fluid installation and wherein the dimensions der Rukoto maintaining the sealed state by.

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